Unit Converter › Pressure › inHg → mmHg
Pressure · scale · base pascal
inHg to mmHg
1 inch mercury (inHg) = 25.4 mmHg. Multiply by 25.4. One inch mercury (inHg) is 25.4 mmHg.
Convert
scale · base pascal
—
| Every unit at once | Value | Unit |
|---|
inHg to mmHg table
| inch mercury (inHg) | mmHg | Unit |
|---|---|---|
| 1 inHg | 25.4 | mmHg |
| 2 inHg | 50.8 | mmHg |
| 3 inHg | 76.2 | mmHg |
| 5 inHg | 127 | mmHg |
| 10 inHg | 254 | mmHg |
| 20 inHg | 508 | mmHg |
| 25 inHg | 635 | mmHg |
| 50 inHg | 1,270 | mmHg |
| 100 inHg | 2,540 | mmHg |
| 500 inHg | 12,700 | mmHg |
| 1,000 inHg | 25,400 | mmHg |
gauge or absolute
Tyre and boiler gauges usually read pressure above the surrounding air, not total pressure. This converter changes units only — it cannot know which zero your gauge uses.